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R. BROWN SON. Leather-Punching Machine. No. 197,326.

Patented Nov. 20, 1877.

INVENTOR fiwmww,

ATTORNEY NPETERS, PHOTDLITHOGRAPHER, WASHINGTON D C nnmp PATENT I thanBRowNsoN, 0F sr. PAUL, MINNESOTA.

lmpnovzmam-lm r sA-rnea-"puucnme MACHINES.

Specification forming part of Letters Patent, No. 197,326, datedNovember 20, 1877 application filed October 6, 1877.

To all whom it may concern:

Be it known that I, RALPH BROWNSON, of St. Paul, in the county of Ramseyand State of Minnesota, have invented a new and valuable Improvement inLeather-Punching.Machines; and I do hereby declare that the following isa full, clear, and exact description of the construction and operationof the consists in the construction and novel arrangement, in connectionwith a punch, a mechanism for operating the same, and a feed-wheel, ofan adjustable pressure-wheel having edge flanges and creasingribs,whereby the strap is fed to the punch automatically, and creased afterpassing the punch, as will be hereinafter more fully set forth. x

In the annexed drawings, the letter A desi gnates a strong bed or table,upon' which the operating devices of my machine are mounted.

I B represents a shaft extending across the table, and having itsbearings in rigid hangers (1, depending from the bottom thereof. Uponthis shaft, at or near the middle of its length, is secured, in anysuitable manner, a double tappet, O, the ends of which project equallybeyond said shaft, and during the rotation thereof come alternately incontact with a metallic spring, S, rigidly secured at one end to theunder side of the table, near its front end. This spring has an angularseat, b,which causes its free end to stand free of the under side of thesaid table.- The free end of this spring is provided with uprighttubular punches c, that work through perforations in the bottom of thetable against a raised metallic head-block, 1), secured to the upperside thereof. A Upon the shaft B is secured a double cam-tappet, G, thatengages a metallic ratchet wheel, H, upon the end of a second shaft, I,arranged in suitable bearings upon the under side of the table, in rearof shaft B. Upon this .shaft is keyed a feed-wheel, B, that is made ofmetal, or of wood shod with metal, and preferably roughened upon itsperimeter. This wheel extends upward through a slot in the table, on alevel with or slightly above the top thereof, immediately below a secondmetallic wheel, J. This wheel J has its bearings in metallic plates 6,arranged after the manner of sashes in the upright standards K, andhaving free vertical movement relative thereto. Upon these plates, andbetween the said standards, a metallic follower, L, is placed, having acentral stud, around which is coiled a strong helical spring, M, theupper end of which bears against a metallic collar, g, upon the lowerend of a thumb-screw, N. This screw works through a metallicplate-brace, h, connecting the ends of the standards K, and, when setup, causes the wheel J to approach nearer.

the feed-wheel B, and when reversed to sepa rate farther therefrom,thereby lessening or increasing the distance between the said wheel,according to the thickness of the strap.

The yielding of the spring serves a purpose which will be hereinafterexplained.

The wheel J has edge guide-flanges i, between which the strap isreceived, and near said flanges is provided with annular creasingribs Ths shaft B receives motion through the medium of a crank-arm, 0, or otherequivalent device.

The operation is as follows: The strap is passed under the head-blocks,and thrust to the rear between the feed and creasing rollers, and motionimparted to the shaft B. At each sgmi-rotation of this shaft one of theends of the tappet comes in forcible contact with the springpunch-holder, and thrusts it upward, thereby driving the punches throughthe strap. The rotation of the shaft being continued, the spring isrelieved from the tappet, and reacts, thereby drawing the punches out ofthe strap. The oam-tappet then takes hold upon the ratchet-wheel,thereby causing the feed-wheel to revolve and draw the strap a certaindistance through the head-block, thereby bringing a new portion of thestrap over the pimches. This operation being continued, the said strapwill be perforated at regular intervals through- B, havin g tappets G G,substantially as speci- In testimony that I claim the above I havehereunto subscribed my name in the presence of two witnesses.

RALPH BROWNSON.

Witnesses:

MARTIN BURKLEY, GEO. H. HOPPER.

